Product Description

The petrochemical, gas processing, and gas pipeline industry has for many years required an accurate, dependable, low maintenance, and cost effective sulfur analyzer for quality and laboratory purposes.

With over twenty years of experience in developing and manufacturing sulfur analyzers and associated parts and supplies, Analytical Systems International has met these requirements with a unique and proven microprocessor based analyzer, which provides analysis based on the only absolutely specific lead acetate principal of operation.

The Model 856-150 system measures H2S and total sulfur by hydrogenation, similar to that as described in ASTM Method D3031, D4084-82, D4468-85, and 4045-81.

The sulfur sample is precisely metered into a continuous flowing stream of hydrogen gas. The sample and hydrogen are heated in the furnace resulting in thermal cracking of the sulfur which are reduced to short chain hydrocarbons. These reactions result in the formation of H2S. After complete humidification of the sample the H2S comes in direct contact with the lead acetate tape which produces a darkening of lead sulfide immediately measured by the photodiode/LED optics and rate-of-reaction digital electronics to provide an accurate and reproducible total sulfur and H2S analysis with PPB or PPM.

The LCD display provides the current reading, any alarm condition, procedure prompts (such as calibration procedure), and failure indicators (is offered). Quality materials are selected for their compatibility and are utilized throughout fabrication.

Special attention is given to wetted parts that come in contact with the process stream and are selected to be non-reactive with H2S/Sulfur.